•If there is voltage at both pink/black wires men- tioned in the previous paragraph, check voltage at yellow/red parking brake wires with the park brake off.
•If voltage is not present, the wire between the seat relay and parking brake switch is uncon- nected or the seat relay is defective and must be replaced.
•If voltage is present at one wire but not the other, the parking brake switch is defective and must be replaced.
Troubleshooting Deck Safety Switch
1.Pull handlebars in with deck in lowest cutting height position (1), see Figure 11.
2.Check that switch is making contact with the height gauge.
3.Check that the wires are properly hooked up to power unit.
4.Adjust switch bracket location on actuator if needed (four screws). Make sure height screw does not bottom out on slot in either direction when raising or lowering deck.
5.Check that screws holding switch to bracket are not too tight and holding lever open.
6.Adjust safety switch lever or replace switch if necessary.
7.After adjustments, check that engine cuts out with deck partially raised.
HYDROSTATIC PUMP REMOVAL
NOTE: Removal procedures are the same for both right and left hydrostatic pumps.
1.Place power unit on a level surface and remove key.
2.Place power unit on stands to allow access to bottom of the machine.
3.Drain hydraulic reservoir and hydrostatic pumps.
4.Remove steering linkage from control arm on hydrostatic pump.
5.Loosen
6.Remove hoses from hydrostatic pump. Plug and cap all fittings on hoses and pump to prevent contamination.
7.Remove sheaves from hydrostatic pump. Remove 1/4 NC x 3/4 bolts from bushing/sheave. Use new 1/4 NC x 3/4 GR5 bolts in holes located 90° from previously occupied holes, to separate the bushing from the sheaves.
8.Remove two bolts holding hydrostatic pump to frame and remove pump from frame. Hydrostatic
pump weighs approximately 8 lbs.; use care when removing.
HYDROSTATIC PUMP INSTALLATION
1.Position hydrostatic pump into power unit frame and secure with two bolts. Apply Loctite® 242 to threads of the two mounting bolts and torque to 35
2.Install sheave onto hydrostatic pump and secure with taper lock and cap screws. Alternate tightening each cap screw to 8
3.Install hoses to hydrostatic pump.
4.Install belts and tighten
5.Install steering linkage to control arm on hydrostatic pump.
6.Fill hydraulic reservoir with new fluid. Use
7.Start engine and disengage parking brake.
8.Open pump dump valve.
9.Slowly push steering levers back and forth 5 to 6 times to bleed the hydraulic system.
10.Close pump dump valve.
11.Adjust neutral position of steering linkage as necessary.
12.Stop engine. Check level of hydraulic reservoir and check for leaks.
13.Remove power unit from stands.
BELT REMOVAL
1.Remove key from switch.
2.Remove belt shield, if necessary.
3.Remove clutch
4.Loosen idler spring bolt
5.Remove belts.
ENGINE REMOVAL
1.Disconnect throttle cable, battery cables, hoses, fuel line, and electrical wires from engine.
2.Remove the four engine mounting bolts from bottom of power unit frame.
3.Remove belts from the front and rear engine pulleys. See Belt Removal.
4.Lift engine from the power unit frame.
NOTE: Contact your authorized engine dealer for parts and repairs.
22 Dealer Service | MAN0875 (2/8/2011) |
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